Dortmund responded with furious attacks but Gikiewicz was alert enough to keep out promising chances from Thomas Meunier and Erling Haaland before the break.
Jiangsu built an unsinkable 8-2 lead before it took the first set 25-16 and then won the second 25-11.
Despite the loss, Shanghai is still secure atop the Suzhou division.
Shijiazhuang will go to the Dalian division, where the relegation competition is held. Their first opponent is Dalian Pro, coached by Spaniard Rafael Benitez.
Yao Zhenxu, former Vice President of the Chinese Table Tennis Association (CTTA), was appointed Personal Honorary Member of the ITTF for his long-time commitment to international table tennis.
There was a hint that the ball could have brushed Jota's arm, but the goal was allowed to stand and Liverpool now have three wins from their first three games of the season.
In Tuesday's other action, Shanghai smashed Hebei 3-0 (25-18, 25-12, 25-7), Tianjin beat Yunnan 3-0 (25-12, 25-17, 25-13), Liaoning defeated Guangdong 3-0 (25-18, 25-12, 25-15), and Zhejiang crushed Sichuan 3-0 (25-12, 25-14, 25-16). Enditem
GWM earlier told the Thai media that it aims to make Thailand its ASEAN (the Association of Southeast Asian Nations) production base for domestic sales and export of new energy vehicles and internal-combustion engine models.
The 62-year-old didn't exclude himself from the solution after leaving RB Leipzig eight weeks ago.
Shao led the charge into the second quarter by scoring seven straight points and feeding Huang Ping-Jen's three-pointers thereafter. Xinjiang also attempted shots from the 3-point range, as Liu Tongyi, Wang Lili and Liu Xiao combined to help them compile a 50-49 lead going into halftime.
Fujian had little chance to score in the third set. Yang Yi then concluded the game with a serve.